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DETECTION OVERVIEW
Risk Factors
A server hosting Struts 2 is often exposed to the internet, and several remote code execution (RCE) vulnerabilities are well known. An unauthenticated attacker could gain complete control of a device and find an entry point for further attacks on your network.
Kill Chain
Risk Score
83
Apache Struts 2 is a popular framework for Java web applications. A vulnerability in the REST plugin for Struts 2 enables an attacker to send a specially crafted HTTP POST request that results in RCE. The POST request contains malicious XML data deserialized by the XStream handler without any type restrictions. Ultimately, malicious code contained in the deserialized XML runs on the server, and the attacker can gain unlimited access to the server.
Upgrade Apache Struts to version 2.3.34, 2.5.13, or later
Install relevant patches for enterprise products that are packaged with Struts 2 from vendors such as VMware, Oracle, IBM, Huawei, HP, Cisco, Atlassian, Lenovo, and HP Enterprise
